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Magnes, Loadstone
Page
of 384
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170
NATURAL HISTORY OF GEMS.
more of a metallic, steely lustre) the more powerful the Magnet.
It is a singular omission on the part of Theophrastus that he should make no mention of this mineral, though described by his master Aristotle accurately enough ; his
Magnetis
would appear to be some Talcose rock from his notice (41): "Some stones admit of being sawn, others of being carved, or turned in the lathe like the stone
Magnetis,
which holds a high rank for its beauty, and is by many much admired on account of its resemblance to silver, though it really has no affinity to that metal."
The singular nature of the Loadstone excited the wonder of the ancient naturalists. Pliny exclaims, " What is more inert than the rigidity of a stone ? Yet lo ! Nature hath given it feeling and hands. What more contumacious than the hardness of Iron ? She hath bestowed upon it both feet and complaisance : it is attracted by the Loadstone ; and that metal, the subduer of all things, runs to meet something or other that is bodyless (inane), and when it comes near leaps towards it, is held by it, and clasps it in its embraces. Hence is it termed Sideritis ; and by others, for the same reason,
Heraclios,
or the stone of Hercules." Claudian has an elegant poem (translated at the end of this article) upon a shrine, containing a statue of Venus made of Loadstone, and another of Mars in iron. When the festival of their marriage was celebrated these statues were brought near, and by mutual attraction appeared to fly into each other's arms. There can be no doubt the poet is describing what he had himself witnessed.
Dinochares (or Timochares) the architect had, according to Pliny (xxxiv. 42), commenced vaulting over the temple of Arsinoe, at Alexandria, with blocks of Loadstone, with the idea that her statue, to be made of iron, would thus remain suspended in mid-air. This tradition was in all
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Table Of Contents
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King. Gems Or Decorative Stones.
Contents & Preface
Achates, Agate
Aetites, Eagle-Stone
Alabandicus, Almandine
Alabastrites
Amethystus, Amethyst
Asteria Girasol Sapphire
Basanites Basalt
Batrachites, Toadstone
Beryllus, Beryl
Callais, Turquois
Camahutum, Cameo
Ceraunia, Thunder-bolt
Chalcedonius, Calcedony
Chrysocolla, Carbonate of Copper
Chrysoprasius, Chrysoprase
Chrysolithus, Oriental Topaz
Ch. 1
: Corallium, Coral**
Crystallus, Rock-crystal
Cyanus, Lazulite
Amazon Stone Labrador
Agates, Jet
Heliotropium, Heliotrope
Jaspis, Jasper, Quartz-gems
Lapis Lydius, Touchstone, Assaying
Lyncurium, Jacinth
Magnes, Loadstone
Molochites, Malachite
Murrhina, China-Agate
Naxium, Emery
Lapis Nephriticus Jade
Obsidianum, Obsidian
Onyx, Nicolo
Opalus, Opal
Ostracias, Marcasite
Ovum Anguinum, Druid's Bead
Pantarbes
Porphyrites, Porphyry
Prasius, Plasma
Sandaster, Aventurine
Sapphirus, Lapis-lazuli
Sardius, Sard
Sardonyx
Solis Gemma, Moon-stone
Sucoinum, Amber
Topazius, Peridot
Zmilampis, Cat's-eye
Vitrum Annulare, Pastes
Description Woodcuts
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